package com.hmdp.service.impl;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.json.JSONUtil;
import com.hmdp.dto.Result;
import com.hmdp.entity.ShopType;
import com.hmdp.mapper.ShopTypeMapper;
import com.hmdp.service.IShopTypeService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author 虎哥
 * @since 2021-12-22
 */
@Service
public class ShopTypeServiceImpl extends ServiceImpl<ShopTypeMapper, ShopType> implements IShopTypeService {
@Autowired
private StringRedisTemplate redisTemplate;
@Autowired
private ShopTypeMapper shopTypeMapper;
    @Override
    public Result queryList() {
        Long shopType = redisTemplate.opsForList().size("shopType");
        if (shopType!=0){
            List<ShopType> shopTypes = new ArrayList<>();

            List<String> shopType1 = redisTemplate.opsForList().range("shopType", 0, shopType);
            shopType1.forEach(s ->{
                shopTypes.add(JSONUtil.toBean(s, ShopType.class));
            });

            return Result.ok(shopTypes);
        }

        List<ShopType> shopTypes = shopTypeMapper.selectList(null);
        shopTypes.forEach(shopType1 -> {
            String jsonStr = JSONUtil.toJsonStr(shopType1);
            redisTemplate.opsForList().rightPush("shopType", jsonStr);
        });

        return Result.ok(shopTypes);
    }

}
